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21. 发明专利

JP2005147459A Gas turbine combustor and method of supplying fuel to it 审中-公开
标题翻译：燃气轮机及其燃料供应方法
公开(公告)号：JP2005147459A
公开(公告)日：2005-06-09
申请号：JP2003383259
申请日：2003-11-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HIRATA YOSHITAKA , YOSHIDA SHOHEI , ITO KAZUYUKI , INOUE HIROSHI , MUROTA TOMOYA
IPC分类号： F23R3/28 , F02C7/22 , F23R3/26 , F23R3/36
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine combustor and method of supplying fuel to it, increasing a mixing characteristic of liquid fuel to air.
SOLUTION: This gas turbine combustor that mixes liquid fuel and gas fuel with air for combustion comprises a mixing chamber 4 being formed in approximately conical shape expanding toward the downstream side and having a plurality of air introduction holes on the side wall part, a liquid fuel nozzle 10 being placed on the upstream side of the mixing chamber 4 and injecting the liquid fuel to the inner wall surface of the air introduction hole 17 for collision, and gas fuel nozzles 9 being arranged opposite to the air introduction holes 17-19, injecting the gas fuel approximately coaxially with the axes of the air introduction holes 17-19, and supplying the gas fuel inside the mixing chamber 4 via the air introduction holes 17-19.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种燃气轮机燃烧器和向其供给燃料的方法，提高液体燃料与空气的混合特性。解决方案：将液体燃料和气体燃料与用于燃烧的空气混合的燃气轮机燃烧器包括形成为朝向下游侧扩张的大致圆锥形的混合室4，并且在侧壁部分上具有多个空气引入孔，液体燃料喷嘴10被放置在混合室4的上游侧，并且将液体燃料喷射到用于碰撞的空气引入孔17的内壁表面，气体燃料喷嘴9与空气引入孔17- 如图19所示，将气体燃料与空气导入孔17-19的轴线大致同轴地喷射，并且经由空气导入孔17-19向混合室4供给气体燃料。版权所有（C）2005，JPO＆NCIPI

22. 发明专利

JP2001082173A GAS TURBINE COMBUSTION ABNORMALITY-MONITORING/ CONTROLLING DEVICE 失效
公开(公告)号：JP2001082173A
公开(公告)日：2001-03-27
申请号：JP26319399
申请日：1999-09-17
申请人： HITACHI LTD
发明人： NAGABUCHI NAOYUKI , YOSHIDA SHOHEI , HIRATA YOSHITAKA , TAKAHASHI MASAE , KAWAMURA HIDEYUKI
IPC分类号： F02C9/00 , F02C9/46 , F23R3/34
摘要： PROBLEM TO BE SOLVED: To directly monitor pressure distribution variation due to the occurrence of abnormal combustion and simultaneously monitor a temperature change of a flame holder positioned most in the vicinity of a combustion part by deciding combustion abnormality according to a pressure difference between a combustion air inlet part and a combustion part downstream part and the temperature of a combustor high temperature member to adjust the fuel quantity to the combustor. SOLUTION: A thermometer 12 inserted in a flame holder 9, and a differential pressure gauge 13 for measuring a differential pressure between an air passage and a combustion part 11 are installed in a combustor 3, and a thermometer 14 for measuring the exhaust temperature distribution and an NOx meter 15 for measuring NOx of exhaust gas are installed in an exhaust part of a turbine 4. When abnormal combustion is decided according to the information from the respective measuring points, diffusion and pre-mixture fuel quantity adjust valves 5, 6 are operated, and simultaneously the information on the combustion condition and combustor inspection is displayed on a display device 17. Thus, the pressure distribution variation and the flame holder temperature change are directly monitored, so that stable operability is determined at the stage where symptom of abnormal combustion is generated. Accordingly, fuel input amount is adjusted to prevent abnormal combustion.

23. 发明专利

JP2001041453A GAS TURBINE COMBUSTOR AND COMBUSTION METHOD 失效
公开(公告)号：JP2001041453A
公开(公告)日：2001-02-13
申请号：JP21956999
申请日：1999-08-03
申请人： HITACHI LTD
发明人： HIRATA YOSHITAKA , YOSHIDA SHOHEI , HAYASHI AKINORI , OTSUKA MASAYA , MUROTA TOMOYA , KOBAYASHI SHIGEYOSHI
IPC分类号： F23R3/00 , F02C9/00
摘要： PROBLEM TO BE SOLVED: To suppress incomplete ignition at the time of starting operation by providing a sound wave generator in each branch pipe of a manifold for supplying fuel to a plurality of gas turbines, receiving a sound wave generated from the sound wave generator by means of a sound wave receiver and detecting gas in the branch pipe thereby controlling an igniter. SOLUTION: When a gas turbine combustor 3 is ignited, a gas turbine 2 is rotated with external energy up to an ignition r.p.m. and fuel gas required for ignition is thrown into a diffusion burner 8 while being regulated by means of a pressure regulation valve 17 and a flow regulation valve 16 before being ignited by means of an igniter 19 and combusted. After ignition, fuel gas is supplied to a premix fuel nozzle 11 and mixed with compressed air 12 by means of a premixer 10 before a premixed flame is formed by means of a flame holder 9. A fuel branch pipe 18 is provided with a sound wave generator comprising a loud speaker and a frequency oscillator 28, a generated sound wave is detected by means of a sound wave receiver comprising a microphone and a frequency analyzer 30 and abnormal combustion is detected based on the variation of the sound wave.

24. 发明专利

JP2000356345A GAS TURBINE COMBUSTOR AND COMBUSTION METHOD THEREOF 失效
公开(公告)号：JP2000356345A
公开(公告)日：2000-12-26
申请号：JP16929099
申请日：1999-06-16
申请人： HITACHI LTD
发明人： OTSUKA MASAYA , MUROTA TOMOYA , YOSHIDA SHOHEI , HIRATA YOSHITAKA , KOBAYASHI SHIGEYOSHI
IPC分类号： F23R3/30 , F23R3/42
摘要： PROBLEM TO BE SOLVED: To ensure stabilized combustion by placing an annular member for rectifying flow of fluid in an interconnected fluid channel on the outer circumferential side of a combustion chamber tubular member thereby suppressing diverted flow of oxidizing agent in the circumferential direction of a combustor. SOLUTION: A perforated panel 17 is fixed, as a rectifying mechanism, between a protrusion 15 provided in the vicinity of the outlet of a combustion chamber and a protrusion 16 provided at the inlet of a premixer. Since the perforated panel 17 is disposed at an enlarged part of a channel, cross-sectional average current velocity is low and the high current velocity region of a diverted flow in the circumferential direction of a combustor generated by the outer tube 14 of a plug can be attenuated. Since a channel enlarging part for enlarging the channel area from the upstream toward the downstream of oxidizing agent is provided in a curved channel on the upstream side of a rotary section, and a rectifying mechanism is provided at the channel enlarging part or on the downstream side thereof, diverted flow in the circumferential direction of the combustor is limited. In particular, high current velocity region of a diverted flow in the circumferential direction of the combustor can be attenuated and combustion can be stabilized.

25. 发明专利

JPH11148370A GAS TURBINE 失效
公开(公告)号：JPH11148370A
公开(公告)日：1999-06-02
申请号：JP31482197
申请日：1997-11-17
申请人： HITACHI LTD
发明人： KOGANEZAWA TOMOKI , INOUE HIROSHI , KOBAYASHI SHIGEYOSHI , ITO KAZUYUKI , NAGABUCHI NAOYUKI , YOSHIDA SHOHEI , HIRATA YOSHITAKA , ENAMI TAKAFUMI
IPC分类号： F02C7/00 , F02C9/00 , F02C9/28 , F23R3/00 , F23R3/46
摘要： PROBLEM TO BE SOLVED: To uniform temperature of combustion gas generated by each combustor, and to ristrain thermal stress fluctuation of turbine blades by measuring pressure difference between all or parts of combustors in a gas turbine equipped with plural combustors. SOLUTION: A gas turbine has plural combustors 1 which combust fuel under compressed air supply to generate high temperature gas, and these combustors 1 are arranged circularly around the axis of the gas turbine. The adjacent combustors 1 are interconnected through a connecting tube 2, and combustion gas is flown through flame propagation tubes in the connecting tubes 2 according to pressure difference between the both end combustors 1. In this case, a connector 11 for branch is mounted on the outer end of a pressure guide tube 10 connected with each combustor 1, with which a differential pressure gauge 12 for measuring pressure difference between adjacent combustors. On the basis of the measured pressure difference information, unbalance of combustion condition is detected, and combustors 1 are controlled to eliminate this unbalance.

26. 发明专利

JPH09329336A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPH09329336A
公开(公告)日：1997-12-22
申请号：JP14888896
申请日：1996-06-11
申请人： HITACHI LTD
发明人： HIRATA YOSHITAKA , YOSHIDA SHOHEI , INOUE HIROSHI , KOGANEZAWA TOMOKI , OTSUKA MASAYA , MUROTA TOMOYA , MORIWAKI BUNJI
IPC分类号： F23R3/22 , F23D14/26 , F23R3/48
摘要： PROBLEM TO BE SOLVED: To prevent the burning loss of a flame propagating tube upon load operation without reducing a combustion gas temperature by a method wherein the entering of air into the flame propagating tube is prevented upon ignition while air is introduced into the flame propagating tube after finishing the ignition. SOLUTION: Combustion gas 12 is injected into a gas turbine 2 through a transition piece 10 to drive the gas turbine 2. A flame propagating tube 8 is inserted into an inner cylinder 5 and a cover 17, made of a bidirectional shape memory alloy, is installed on a plurality of cooling ports 16, formed on the flame propagating tube 8 to deform the cover 17 by the shape memory effect thereof and open or close the cooling ports 16. The cover 17 is attached so as to close the cooling ports 16 of the flame propagating tube 8 upon igniting a combustor to preclude the inflow of compressed air 11 into the flame propagating tube 8 through the cooling ports 16. Upon load operation, the cooling ports 16 are brought into opened condition and, as a result, the compressed air 11 flows into the flame propagating tube 8 through the cooling ports 16 whereby the temperature rise of the flame propagating tube 8 due to high-temperature combustion gas can be prevented.

27. 发明专利

JPH08200679A METHOD FOR OPERATING GAS TURBINE COMBUSTION DEVICE 失效
公开(公告)号：JPH08200679A
公开(公告)日：1996-08-06
申请号：JP868895
申请日：1995-01-24
申请人： HITACHI LTD
发明人： KOGANEZAWA TOMOKI , ISHIBASHI YOJI , INOUE HIROSHI , YOSHIDA SHOHEI , AKATSU SHIGEYUKI
IPC分类号： F02C9/48 , F23R3/28 , F23R3/32 , F23R3/34
摘要： PURPOSE: To realize low NOX by a method wherein an operation is carried out with a dispersion type pilot burner from an activation of a gas turbine to a condition of about rated number of rotation in no-loaded state, the operation is adapted to an increased load during the operation by the dispersion pilot burner and a second premixing burner, and also a first premixing burner is added in a high load region. CONSTITUTION: Under a condition ranging from an energization of a gas turbine to about a rated number of rotation in non-load condition, fuel is passed to a dispersion pilot burner fuel system 203 and an operation is carried out with the dispersion pilot burner 8. Then, under a predetermined load, a fuel flow rate in a second premixing burner fuel system 202 is increased while a fuel flow rate of the dispersion pilot burner fuel system 203 is being decreased and for a subsequent increased load, flow rates in both fuel systems 202, 203 are increased and then the operation is performed with the dispersion pilot burner 8 and the second premixing burner 12. In addition, in a high load region, fuel is also supplied to the first premixing burner fuel system 201 and also the first premixing burner 9 is added to the operation.

28. 发明专利

JPH08135969A AIR FLOW RATE REGULATOR FOR GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPH08135969A
公开(公告)日：1996-05-31
申请号：JP27351694
申请日：1994-11-08
申请人： HITACHI LTD
发明人： YOSHIDA SHOHEI , IWAI KAZUMI , ISHIBASHI YOJI , INOUE HIROSHI , AKATSU SHIGEYUKI , KOGANEZAWA TOMOKI
IPC分类号： F02C9/16 , F23R3/26 , F23R3/30
摘要： PURPOSE: To provide a gas turbine combustor, permitting reduction of NOx, by a method wherein combustion air is supplied into a premixing device without disturbing the flow of combustion air in the premixing device to retain the mixing ratio of fuel to air in combustion zone so as to be uniform regardless of the flow rate of combustion air. CONSTITUTION: A flow regulating ring 18, having lattice type slits for dividing the flow passage of air which flows into a premixing device 15, is arranged at the combustion air intake unit 19 of the premixing device 15. A lid body, covering the flow regulating ring 18, or an air flow rate regulating valve 20, having a cylindrical shape and provided with lattice type slits, is arranged at the outer periphery of the flow regulating ring 18. The air flow rate regulating valve 20 is moved into the axial direction of a gas turbine combustor whereby the opening area of the flow regulating ring 18 is regulated and the flow rate of air, which flows into the premixing device 15, can be controlled.

29. 发明专利

JPH03271502A TURBINE BLADE CONNECTION DEVICE 失效
公开(公告)号：JPH03271502A
公开(公告)日：1991-12-03
申请号：JP6959390
申请日：1990-03-22
申请人： HITACHI LTD
发明人： NAMURA KIYOSHI , YOSHIDA SHOHEI , SAITO EIJI , IKEUCHI KAZUO
IPC分类号： F01D5/22
摘要： PURPOSE:To prevent excessive force from being applied to blades or a connection member with untwisting generated on the blades by composing both ends of the inorganic fiber connection member of fiber reinforced member, engaging the fiber reinforced metal part with the adjacent blade. CONSTITUTION:A rear edge end 13 of one moving blade 1a is connected to a front edge end 14 of adjacent moving blade 1b by means of a connection member 2a at a radial part of a blade end. Through-holes 3 which is penetrated through both the blades 1a, 1b are formed respectively on the sections of the moving blades 1a, 1b in the vicinity of the rear edge end 13 and the front edge end 14. A connection member 2a is inserted into the through-holes 3, and both ends of the connection member 2a are engaged with enlarged holes 6a, 6b on the ends of the through-holes 3. The connection member 2a is made up of intermediate fiber part, that is, a fiber bundle 4a or knitted fiber 4b and both end fiber reinforced metal part, that is, hook part 5, a screw part 7, and a screw part 8. The screw part 7 is inserted into the through hole 3, the nut 8 is screwed for installation.

30. 发明专利

JPH03265478A ENERGY CONVERTER AND ION BEAM GENERATOR THROUGH ENERGY CONVERSION 失效
公开(公告)号：JPH03265478A
公开(公告)日：1991-11-26
申请号：JP6494190
申请日：1990-03-15
申请人： HITACHI LTD
发明人： NAKANO SUSUMU , KIMURA YOSHIKAZU , TSUBOUCHI KUNIYOSHI , YOSHIDA SHOHEI , NAMURA KIYOSHI
IPC分类号： H02N3/00
摘要： PURPOSE:To take out energy directly from steam flow without employing a charge injection source by feeding saturated steam from a steam supply source and taking out charges of charged particles, produced through a supersonic nozzle as the steam is condensed, by means of a collector. CONSTITUTION:A pressure reducing unit arranged in a discharge system is operated under a state where no steam is supplied thus bringing the inside of a flow path into low pressure state. Subsequently, steam is fed to a supersonic nozzle. The steam fed from a steam supply source to the supersonic nozzle adiabatically expands but it is condensed in the way. Charged particles produced through condensation are collected at the step part 35 at the outlet of the supersonic nozzle and electrostatic charges are accumulated thereat. When a collector is connected with a load 36, current flows through the load 36 and electric energy can be taken out.

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